Most "functional exercises" these days exist solely for clicks and likes. This one is an exception. Use the single-arm press in the half-kneeling position to hit both the shoulder and the core with quality reps.
related posts
Tip: Soreness – Good or Bad?
It's a trickier subject than you think. Here's what you really need to know.
Debunking Exercise Myths - Part 1
Do you know squat about the squat and other lifts? Here are some misconceptions.
Mister Spine - Part 2
An interview with Stuart McGill, Part 2
Tip: A Giant Set for Giant Triceps
Combine rope pushdowns, overhead extensions, and dips into one giant set for guaranteed gains. Do 4 sets, 12 reps for each exercise in the giant set.